The two aircraft commonly referred to as "Air Force One" that the President often uses for travel are this make & model:
Boeing 747-200B
This modern-day NYC transit hub once had an above-ground Grand Hall & Concourse that was eventually torn down to build a sports and live events arena
Penn Station
Oldest subway/metro system in the world
London
The shortest CTA train line
Yellow line
U.S. State that is *attempting* to build a true high-speed rail line
California
Home country of aircraft manufacturer Embraer
Brazil
This world-famous subway/metro system funds itself largely by owning and leasing out property on and adjacent to its' stations (hint - Asia, answer can be transit system or the city's name)
Hong Kong MTR
This is the piece of infrastructure that creates a physical connection between the UK & mainland Europe (any of the three commonly used names accepted)
Eurotunnel, Channel Tunnel, Chunnel
One of the two stations closed through 2024 (atleast) for reconstruction
Lawrence and Berwyn (Red Line)
New York's "East Side Access" project aims to add additional service from Queens & Long Island to this major train station
Grand Central
First carrier to put the A380 into passenger service
SQ
The right of property owners to manage the space above their property. Often a consideration for developers when building large buildings in dense cities like New York.
Air rights
The three countries that employ Maglev technology for passenger service
China, Japan, Korea
The home country of the company producing CTA's new 7000 series trains
China (CRRC Sifang America)
This train line is currently being extended to provide service to one of UA's domestic hub airports
Silver Line
Year of the final commercial Concorde flight
2003
This term describes a station/hub that connects multiple modes of transportation and allows connections between different services
Multimodal
The term used to describe the width between the two rails that make up standard train tracks
Gauge
The location (station name) of a new rail overpass being constructed currently in Chicago
Belmont
The city currently working on the "Crossrail" tunneling project
London
The largest plane ever built
Antonov An-225
This civilization is often credited with pioneering modern urban planning, and is responsible for spreading such ideas as it conquered territory and expanded its reach.
Roman Empire
This Asian city boasts the fastest passenger train (in terms of legal operating speed, not absolute speed)
Shanghai
The year of the infamous blue-line crash at O'hare station
2014
This country is the beneficiary of the C_EC (The China-?Country? Economic Corridor) which aims to improve the beneficiary country's infrastructure and physical links to China
Pakistan