Carbonate of this element is the active ingredient in Tums, which can be used to treat a deficiency of it
Calcium
It's about 25 miles from Sphinx International
Cairo
AuctionWeb was an early name for this company founded by Pierre Omidyar
eBay
In this philosopher's "Symposium", Socrates actually puts on sandals to go discuss love
Plato
In this game, used as a metaphor in Beckett's "Endgame", I forgot to use the Schlechter Defense against the Danish Gambit; I'm toast
chess
Drugs like Claritin work by reducing the effects of this natural chemical in the body
Histamine
It's served by Incheon International
Seoul
This brand's LV monogram was designed by the son of its founder in 1896
Louis Vuitton
An entire room at Berlin's Neues Museum is devoted to the bust of this Egyptian queen renowned for her beauty
Nefrititi
You own all utilities, railroads & properties & your family is seething at your sheer ruthlessness in this game
Monopoly
Before penicillin, bacterial infections were treated with these 5-letter drugs that are still used for eye infections & acne
Sulfa Drugs
Ninoy Aquino International is nearby
Manila
In 1953 it took this company more than 3 dozen tries to create a formula for rust prevention, now a popular lubricant
WD-40
His "Sayings" begin: "The master said, to learn and then do, is not that a pleasure?"
Confucius
The turn gave me 3 of a kind & now the river makes it 4... everyone's all-in & I'm feelin' pretty good about my chances in this game
Texas Hold 'em
The tranquilizer Diazepam began being sold under this name in 1963; a few years later, it was "mother's little helper"
Valium
DAILY DOUBLE
King Khalid International is its gateway
Riyadh
Take a Walkman down memory lane to 1946 when this company was founded in Tokyo by 2 engineers
Sony
You hear a lot that his dad was Darius, but not so much that his mom was Atossa, daughter of Cyrus
Xerxes
Sub-Zero is on the ropes, & Sonya has been told to "Finish him!!" in this video game franchise; Sonya shall indeed finish him
Mortal Kombat
It's the active ingredient in the "pens" used to treat anaphylaxis
Epinephrine
Its main airport is fittingly called El Alto & breathing may be hard upon landing
La Paz
DAILY DOUBLE
Originally an aerial crop-dusting company, it's named for the southern U.S. region it originally served
Delta
The name of this historian & orator is Latin for "silent"
Tacitus
I yelled the name of the game to indicate how many cards I had left, & my next play will end things
Uno