- Galaxy filament (Wikipedia)
In cosmology, galaxy filaments are the largest known structures in the universe, consisting of ‘walls’ of gravitationally bound galactic superclusters. These massive, thread-like formations can reach 80 megaparsecs h−1 (or of the order of 160 to 260 million light-years) and form the boundaries between voids. Galaxy filaments form the cosmic web and define the overall structure of the observable universe.
- Fenelon Place Elevator (Wikipedia)
The Fenelon Place Elevator (also known as the Fourth Street Elevator) is a 3 ft (914 mm) narrow gauge funicular railway located in Dubuque, Iowa, United States. It was listed in the National Register of Historic Places in 1978. It was included as a contributing property in the Cathedral Historic District in 1985, and in the Fenelon Place Residential Historic District in 2015.