[Detective Conan] National Diet Building – Clock Tower Skyscraper Tokyo, Tokyo

【Detective Conan】National Diet Building – The Clock-Timed Skyscraper, Tokyo

The National Diet Building in “The Clock-Timed Skyscraper”

The theatrical film version released in 1997, “Detective Conan: The Clock-Timed Skyscraper,” the first installment of Conan movies, remains beloved by many fans as the origin of the Conan films. In the climactic finale of this commemorative first work, during the climax of a series of bombings by a mad bomber, the National Diet Building appears as an important setting.

In the story, the area surrounding the National Diet Building is depicted as part of the explosive trick set up by the culprit, and tense scenes unfold as Conan and the others work to solve the case. The appearance of the National Diet Building, a symbolic structure of Tokyo, visually emphasizes the scale and tension of the incident, creating a theatrical effect that gives the story gravitas.

The actual National Diet Building is a representative modern architecture of Japan completed in Showa 11 (1936) and currently functions as the legislative chambers for the House of Representatives and House of Councillors. The majestic exterior depicted in the film can be seen exactly as it is when actually visited, making it a precious pilgrimage site where one can experience the world of the work.

Highlights and Architectural Features of the National Diet Building

The National Diet Building is a solemn structure covered in white granite with symmetrical left and right sides. The central tower rising in the middle, standing at a height of 65.5 meters, exerts a distinctive presence in Tokyo’s urban landscape. The entire building measures approximately 206 meters in width and approximately 98 meters in depth, and even from a distance, one can feel its magnificent appearance.

The architectural style is characterized by what is called “Teikoku-yōshiki” (Imperial Crown style), a harmonious fusion of Eastern and Western design, blending Western modern architecture techniques with Japanese aesthetic sensibility in a unique style. The granite exterior was gathered from various locations across Japan, testament to the large-scale national project at the time of construction.

There are multiple ways to access it. The most convenient is the “Nagatacho Station” on the Tokyo Metro Marunouchi, Chiyoda, and Hanzomon/Namboku lines, approximately a 3-minute walk from Exit 1. Additionally, from the “National Diet Building-mae Station” on the Tokyo Metro Marunouchi and Chiyoda lines, it is approximately a 1-minute walk from Exit 1, and true to its name, it is the nearest station. Both provide convenient access by subway with good accessibility from the central area.

Important facilities such as the Prime Minister’s Official Residence, Supreme Court, and National Diet Library are clustered in the surrounding area, making this an area where one can see at a glance Japan’s political, judicial, and legislative centers. With many historically significant place names such as Sakurada Gate and Kasumigaseki, simply strolling through the area allows one to feel Japan’s modern and contemporary history.

Pilgrimage Tips: Photography Spots and Points for Visiting

When visiting the National Diet Building, we recommend starting with external photography. Full-landscape photography from the front entrance is the best spot, allowing you to capture the entire building including the central tower. Particularly on clear mornings, sunlight beautifully illuminates the building, and the white granite is ideal for photography.

When taking photographs while recalling scenes from “The Clock-Timed Skyscraper,” it is good to choose angles that highlight the building’s dignified presence. Shooting from a slightly distant position with a telephoto lens allows you to recreate the powerful composition depicted in the film.

Internal viewing of the National Diet Building is also possible. Tours are conducted by both the House of Councillors and House of Representatives, allowing visitors to view the main chambers, central halls, central tower, and more. Both advance reservations and same-day admissions are available, with the House of Councillors generally being easier to visit on the same day. During internal viewing, one can see up close the solemn atmosphere of the chambers and historically significant decorations, experiencing firsthand the site of Japan’s democracy.

Regarding photography, external photography of the building from outside the premises is generally permitted, but there are restrictions on photography during internal tours. Additionally, as this is an area with strict security, always follow instructions and avoid any suspicious behavior. Use of tripods on nearby roads and prolonged stays may result in warnings from security personnel, so caution is advised.

Depending on the season, the cherry blossoms and autumn foliage in the surrounding areas are also beautiful, and particularly during cherry blossom season in spring, as Chidorigafuchi is nearby, one can also enjoy cherry blossom viewing combined with pilgrimage sightseeing.

Basic Information

Address
〒100-0014 1-7-1 Nagatacho, Chiyoda Ward, Tokyo

Viewing Hours

• House of Councillors: Weekdays 9:00–16:00 (tours begin at every hour at :00)
• House of Representatives: Weekdays 8:00–17:00

※Internal viewing may not be available during Diet sessions or when ceremonies are held

Viewing Methods

• Advance Reservation: Contact or make online reservations with the House of Councillors Police Bureau Visitation Section or House of Representatives Police Bureau Visitation Section
• Same-day Admission: House of Councillors acceptance counter offers first-come, first-served same-day admission (limited capacity)
• Duration: Approximately 60 minutes
• Cost: Free

Nearest Station

• Tokyo Metro Marunouchi/Chiyoda Line “National Diet Building-mae Station” Exit 1, approximately 1-minute walk
• Tokyo Metro Marunouchi/Chiyoda/Hanzomon/Namboku Line “Nagatacho Station” Exit 1, approximately 3-minute walk

Important Notes

• Photo identification may be required
• There will be luggage inspections
• Large baggage may be restricted
• Please dress appropriately
• Photography restrictions apply during internal tours

Official Website
House of Councillors: https://www.sangiin.go.jp/
House of Representatives: https://www.shugiin.go.jp/

The National Diet Building is a place worth visiting, both as the setting for the commemorative first installment of “Detective Conan” for fans and as a symbol of democracy for Japanese citizens. In this solemn atmosphere, recalling scenes from the film while experiencing Japan’s history and culture, enjoy this special pilgrimage sightseeing experience.